Casella-cel CEL-281 Manual de usuario descargar pdf (Pagina 57)

10 s slow max: Maximum SPL taken over a 10 second

sampling period with slow response,

10 s imp. max: Maximum SPL taken over a 10 second

sampling period with impulse response,

1 s fast max: Maximum SPL taken over a 1 second

sampling period with fast response, with

results stored for only the most recent hour,

940024

1 min L (1 min L Q=3)

1 min fast max

1 min slow max

10 s fast max

10 s slow max

1 s slow max

Time Cells

NOW

Selects dB Selects Time

Selects Next Cell

Level dB

AVG

1 s fast max

1 min L Q=6

AVG

1 min L Q=5

AVG

1 min L Q=4

AVG

Exchange

Rate (Q)

Selects

Q value

Most recent hour only

1 s imp. max

10 s imp. max

1 min imp. max

TIME

PROFILE

LEVEL

Selects

Profile

Figure 10: Relationship between the stored time history profiles

How It Works

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Casella-cel CEL-281 Manual de usuario Pagina 57